Carbon capture pretreatment tower suitable for high-temperature flue gas

The carbon capture pretreatment tower comprises an inlet flue, a heat exchanger, a packed tower and packing, the packed tower and the inlet flue are arranged up and down, and a plurality of tower body air inlets and a plurality of flue body air outlets are formed in the outer wall of the tower body and the outer wall of the flue body in a surrounding mode respectively; each heat exchanger comprises a machine shell, a water inlet header pipe, a heat exchange pipe bundle and a water outlet header pipe, the multiple heat exchangers wrap the packed tower in a surrounding mode, and a shell air outlet and a shell air inlet which can be correspondingly communicated with the tower body air inlets and the flue outlets are formed in the inner wall of a shell of the machine shell. The heat exchange tube bundle is arranged in an inner cavity of a shell of the machine shell, a tower body water outlet, a tower body water inlet and a tower body air outlet are further formed in the outer wall of a tower body of the packed to